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  How can I always see the end of the text widget?
 The problem is you add text to the text widget but you can`t see it
because it is now off the screen.  Instead of requiring any interaction
from the user, you can use either of the following lines of code:

.text see end ;# works anytime for text widgets
# OR
.text yview moveto 1 ;# works for other widgets with scrollbars attached